import java.awt.*；   public class X extends Frame {   public static void main （String args） {   X x = new X（）；   x.pack（）；   x.setVisible（true）；   }  public X（） {   setLayout （new BordrLayout（））；   Panel p = new Panel （）；   add（p， BorderLayout.NORTH）；   Button b = new Button （“North”）；   p.add（b）：   Button b = new Button （“South”）；   add（b1， BorderLayout.SOUTH）：   }   }   Which two statements are true？（）

• A、 The buttons labeled “North” and “South” will have the same width.
• B、 The buttons labeled “North” and “South” will have the same height.
• C、 The height of the button labeled “North” can very if the Frame is resized.
• D、 The height of the button labeled “South” can very if the Frame is resized.
• E、 The width of the button labeled “North” is constant even if the Frame is resized.
• F、 The width of the button labeled “South” is constant even if the Frame is resized.